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By using digits 3, 1, 7, 9 and 2 exactly once,

(1) What’s the smallest 5-digit odd number you can make?

(2) What's the largest 5-digit odd number you can make?

(3) What's the smallest 5-digit even number you can make?

(4) What's the largest 5-digit even number you can make?

Correct!